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Document/kexec-kdump-howto.txt: improve notes for kdump_pre and kdump_post scripts

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Signed-off-by: Pingfan Liu <piliu@redhat.com>
Acked-by: Coiby Xu <coxu@redhat.com>
This commit is contained in:
Pingfan Liu 2021-11-15 22:23:42 +08:00 committed by Coiby Xu
parent c59dfe938e
commit 8cc51f3ab9
2 changed files with 16 additions and 4 deletions
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14
kdump.conf.5
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@ -118,8 +118,11 @@ All files under /etc/kdump/post.d are collectively sorted
and executed in lexical order, before binary or script and executed in lexical order, before binary or script
specified kdump_post parameter is executed. specified kdump_post parameter is executed.
.PP .PP
Note that scripts written for use with this directive must use Note that scripts written for use with this directive must use the /bin/bash
the /bin/bash interpreter. interpreter. And since these scripts run in kdump enviroment, the reference to
the storage or network device in the scripts should adhere to the section
'Supported dump target types and requirements' in kexec-kdump-howto.txt.
.RE .RE
.B kdump_pre <binary | script> .B kdump_pre <binary | script>
@ -139,8 +142,11 @@ kdump_pre parameter is executed.
Even if the binary or script in /etc/kdump/pre.d directory Even if the binary or script in /etc/kdump/pre.d directory
returns non 0 exit status, the processing is continued. returns non 0 exit status, the processing is continued.
.PP .PP
Note that scripts written for this directive must use Note that scripts written for use with this directive must use the /bin/bash
the /bin/bash interpreter. interpreter. And since these scripts run in kdump enviroment, the reference to
the storage or network device in the scripts should adhere to the section
'Supported dump target types and requirements' in kexec-kdump-howto.txt.
.RE .RE
.B extra_bins <binaries | shell scripts> .B extra_bins <binaries | shell scripts>

6
kexec-kdump-howto.txt
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@ -621,6 +621,9 @@ If /etc/kdump/post.d directory exist, All files in the directory are
collectively sorted and executed in lexical order, before binary or script collectively sorted and executed in lexical order, before binary or script
specified kdump_post parameter is executed. specified kdump_post parameter is executed.
In these scripts, the reference to the storage or network device should adhere
to the section 'Supported dump target types and requirements'
Kdump Pre-Capture Executable Kdump Pre-Capture Executable
---------------------------- ----------------------------
@ -634,6 +637,9 @@ kdump_pre parameter is executed.
Even if the binary or script in /etc/kdump/pre.d directory returns non 0 Even if the binary or script in /etc/kdump/pre.d directory returns non 0
exit status, the processing is continued. exit status, the processing is continued.
In these scripts, the reference to the storage or network device should adhere
to the section 'Supported dump target types and requirements'
Extra Binaries Extra Binaries
-------------- --------------